Debit cards and credit cards are actually different. Debit card is actually a combination card introduced by banks. What needs to be introduced here is that this card has two functions, namely, credit account and debit account. This card has the functions of cash deposit and withdrawal, income and expenditure transfer, investment and financial management, and can also enjoy overdraft consumption and installment payment. However, the credit card only has the function of credit account, not debit account.